CN1716963B - Method for selecting among network interfaces, device with multiple network interfaces - Google Patents
Method for selecting among network interfaces, device with multiple network interfaces Download PDFInfo
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- CN1716963B CN1716963B CN200510080749.2A CN200510080749A CN1716963B CN 1716963 B CN1716963 B CN 1716963B CN 200510080749 A CN200510080749 A CN 200510080749A CN 1716963 B CN1716963 B CN 1716963B
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- 238000000034 method Methods 0.000 title claims description 20
- 230000009471 action Effects 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/321—Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
- Computer And Data Communications (AREA)
- Small-Scale Networks (AREA)
Abstract
For enabling an application for a device with multiple network interfaces to select among network interfaces to transmit its data, an interface between the application and the network layer of a protocol stack is provided for providing information on network interface availability to the application (5), selecting the network interface by the application (61) and submitting the selected network interface as parameter to the network layer (62).
Description
Technical field
The present invention relates to field of telecommunications, relate in particular to a kind of being used to realize making the application choice network interface of equipment with the method that sends its data, equipment and application thereof with a plurality of interfaces with a plurality of network interfaces.
Background technology
Along with the increase of the available various criterion of wireless network and cable network, and can utilize the new equipment (so-called " many hosts " equipment) of a plurality of networks to come into the market, becoming more and more popular provides its service by provider on these networks of different type.This relates generally to mobile device, wherein available network frequently changes, and for example has except that GPRS (general packet radio service) laptop computer, flat computer, PDA(Personal Digital Assistant) and GSM (global system for mobile communications) mobile phone of the optional network specific digit interface of WLAN (WLAN (wireless local area network)) for example or bluetooth and so on.
Many such equipment provide network layer, wherein can make an interface for that activate or nonactivated by programming.Activate or the deexcitation network interface can influence on the equipment that all are used able to programmely, and the network selecting of the refinement (fine-grained) to each application is not provided.For example, an application should send low volume data on very reliable, expensive network, and comparatively cheap, unsettled network is used for a large amount of transmission and Another application should be selected.
Another possibility scheme is to adopt the equipment that passes through IP agreement (Internet Protocol) connection that the IP route table that can revise by programming is provided, thereby can grouping be sent to the particular network interface according to its intended purposes ground.But,, can not establishment can use the routing table of heterogeneous networks for same destination.
If adopt the equipment that the IP agreement connects that passes through that socket API (application protocol interface) is provided, then can select the particular network interface by the IP address of specified network interface.But along with the change of facilities network, use passing through the equipment that the IP agreement connects and must following the tracks of the change of its IP address of socket API, and with these IP matching addresses to its network interface.In addition, require before application can be carried out alternately with network interface, just to have the IP address that is used for network interface.
For example under Symbian operating system, for each effective network interface, mobile phone has different API usually, and it uses different system calls, is used for transmission of GPRS data and blue-teeth data and transmits.And can docking port carrying out (per-application) control of every application of refinement for different network interfaces provides different API, this is included as each interface/API and rewrites the networking component of using.
Summary of the invention
An object of the present invention is when employing has the equipment of a plurality of network interfaces, can carry out the network interface of every application of refinement and select.By according to the method for claim 1, according to the equipment of claim 7 with should be used for realizing this purpose and other purpose according to claim 9.Pointed out other favorable characteristics of the present invention in the dependent claims.All claims all are interpreted as constituting the required part of specification.
By providing according to interface of the present invention; Internet can make different network interfaces that one is used effectively. and Internet is the one deck in several layers of a protocol stack. and Internet provides by one or more networks and sends the variable length data sequence to the functional and procedural means of destination from information source. and especially, Internet is carried out addressing to message and is physical address with logical address and name translation. and other of protocol stack for example layer has for the Physical layer of the standard device definition electricity or physics or is the application layer of this application execution general application services. for example in open system interconnection (OSI) reference model, protocol stack described in detail.
A major advantage of this new interface is that it is independent of and will be used to send the particular network interface of data.Can select network interface very neatly according to interface of the present invention.This uses the information that obtains about network interface validity, and can consider for example more parameter such as size of data, priority, expense, transmission speed, to select the particular network interface.Then, by this interface, this application is committed to network layer with selected network as parameter.Utilize this information, network layer can utilize selected network interface to connect.
Description of drawings
Provide detailed description of the present invention below.Described description provides by indefiniteness embodiment, can read it with reference to the accompanying drawings, wherein:
Fig. 1 schematically shows the notion of transfer of data;
Fig. 2 schematically shows and uses and network layer;
Fig. 3 schematically shows first embodiment of the method according to this invention;
Fig. 4 schematically shows according to a second embodiment of the method according to the invention;
Fig. 5 schematically shows according to a third embodiment of the method according to the invention.
Embodiment
Fig. 1 schematically shows mobile device 1, uses 2 operations on mobile device 1.For data slave unit 1 is sent to position 4, or vice versa, needs agreement 3, with on network, connect, deal with data and the actual data that send.Agreement 3 partly or entirely realizes in application 2 and/or equipment 1 and/or position 4.
For example, equipment 1 can be mobile phone, laptop computer, PDA or flat computer.Possible application 2 can be for example to send/receive SMS (Short Message Service), MMS (Multimedia Message service), Email, music, synchrodata etc.Some known agreements have for example http, ftp, telnet, TCP/IP and Ethernet.
Owing to the application of interconnection can be described as having a layer structure (see figure 2) abstractively, therefore can mention protocol stack 3 usually.For example, in OSI Reference Model, each layer only all has and to use layer function down and only to the characteristic of upper strata output function.Protocol stack can realize with hardware or software, or realizes with the two mixing.Typically, only low layer is realized with hardware, and high level is realized with software.One of stack layer is a network layer 31.
Using 2 must communicate by letter with the network layer 31 of agreement 3, to obtain necessary information about network interface validity, be used to select to be used for the network interface of transfer of data, and use 2 and must notify the network layer 31 of selected network interface, so that correct connection is set up.According to the present invention, between application 2 and network layer 31, provide suitable interface (in Fig. 2, illustrating), thereby selected network interface can be submitted to network layer 31 from using 2 by arrow.
In a preferred embodiment of the invention, this interface is based on the Java interface of the universal standard.Revise the virtual machine on application layer and the network level,, and make network layer can receive selected network interface as parameter so that make application can submit to selected network interface as parameter.By doing like this, make that this realization is transparent, promptly having according to all other functions of the application of interface of the present invention to utilize all network layers normally to move, other uses the network layer that utilization is had this interface and normally moves, and for example has not according to according to the present invention that the application of the network layer of renewal will produce a definite error messages what application one side had only partly realized interface and so on.
In Fig. 3, described according to one embodiment of the method for the invention in more detail.Mainly occur in the action of using a side and represent, and the action with dashed lines frame table that mainly occurs in network layer one side shows with solid box.
In order to select network interface, this application needs at first to know that what network interface is effective.The nextport hardware component NextPort of the equipment that this not only depends on application and is moved, also depending on what network can use.If consider common mobile device, then possible network can be for example WLAN, bluetooth, GSM.A possibility scheme that obtains these necessary informations is shown in Figure 3.This application can query system properties, to find the information (action 51) about network interface validity.If use the Java interface, then preferably use MIDP 2.0 standards, and inquiry MIDP characteristic.Network layer makes and replying (action 52) to the inquiry of this application by providing the information that inquires.
Another kind of possible scheme has been shown among Fig. 4.Here, use (action 53) by the notice of the IP datagram on the internal socket.Do not use or network layer because this action is not arranged in, therefore illustrate by dashdotted indicia framing.This possibility scheme is more favourable for mobile device, and it is the network availability of processing variation continually.By using datagram, can be notified to this application to the change of network constantly.
In case provide selection that necessary information about network interface validity, this application just can carry out network interface (action 6) for application.Prior choice criteria may be size of data, priority, transmission speed, expense etc.Each application can have its oneself specific choice criteria, and selects different network interfaces, is used for sending different data or receiving different data from same position to same position.This has guaranteed the always preferential effective network interface that uses.
After from effective network interface, having selected preferred network interface intelligently, the selected network interface of informing network layer (action 6), and the interface by this selection produces and connects (action 7), uses or uses from one and receive data (action 81) so that data can be sent to one.
As Fig. 4 schematically showed, in a preferred embodiment, network layer not only produced by selected interface and connects (action 7), also starts an additional application (action 82).Therefore, the validity of the different stage of network interface can be obtained by using.For example, but when the WLAN media time spent, the authentication client might be interested in this, but and the authentication of starting device, connect to obtain IP.But when the IP connection time spent, application subsequently may be relevant with this network interface.Additional application also can be by first application start.The closely-related application that is connected that is similar to the authentication client with processing is preferably automatically started by network layer.
Fig. 5 illustrates in greater detail the embodiment that utilizes the method according to this invention of Java interface according to MIDP 2.0 standards between application and the network layer.The advantage of these Java MIDP 2.0 environment is to have higher portability.In this environment, the realization of the method according to this invention makes it to be applicable to very big equipment scope.Under this environment, typically produce the connection of network service by the clearly Java interface of definition that is called HttpConnection, it uses URL (URL(uniform resource locator)) as parameter.Usually, for for example "
Http:// path/to/resource" and so on URL, agreement (being http in the case) is independent of the basic network interface.Data are sent to tcpip stack, and it uses IP route table, to select suitable network interface.
By inquiry and reply or internal data newspaper obtain network availability information after (action 5), and after having selected the network interface that will use (action 61), this use produce an object "
HttpGPRS: //path/to/resource" (action 62).Therefore, increased functionally, made the agreement of specific URL can select network interface (being GPRS in the case) clearly according to the Java Virtual Machine that is embodied as of the inventive method.That is to say, make same URL "
HttpGPRS: //path/to/resource" HttpConnection will be always carry out network and connect by the GPRS interface.Similarly, same application can specified URL "
HttpWiFi: //path/to/resource", it will carry out network by the WLAN interface always and connect.After having created a HttpConnection object, it is fully transparent that base application is used for this.
Network layer produces according to the HttpConnection object and connects (action 71). and network layer is responsible for guaranteeing that correct network interface is used for by the agreement of using appointment. is important to note that the Java standard of having expanded as MIDP 2.0 and so on, and do not destroy it.Therefore, can revise the existing application compatible mutually with comparalive ease, to comprise feature of the present invention with the Java standard.
The method according to this invention provides the control of every application of the refinement that network interface is selected, but can keep its transparency after selecting network interface.Therefore, can write application, and can make up equipment, be embodied as the selected network interface of software and/or hardware, and therefore provide flexibly service with response user especially mobile device to utilize about the information exchange of network interface validity and with this method.
To in another embodiment that relates to the MMS transmission, be illustrated more clearly in the present invention below.Portable computer is furnished with a plurality of network interfaces, promptly use the WLAN card WiFi, use the mobile phone connected and/or the GPRS of wired lan.Application is written as utilizes a plurality of network interfaces.Especially, for the user provide write MMS and by GPRS send immediately MMS or etc. by the time terminal enters the ability till the WLAN focus.Similarly, when receiving the MMS notice, the user can download it immediately, and in this case, if exist WLAN to connect, then the WLAN on the GPRS that the user is preferred more expensive and slower connects, and perhaps the user waits by the time terminal enters into till the WLAN focus.This provides more options more for the user and from the responsiveness of its terminal, this will increase the use to service, and increase service provider's income.
Although described several preferred embodiments of the present invention, those of ordinary skill in the art is understood that and can carries out various changes, change and replacement, and do not break away from essence of the present invention and principle.
Claims (13)
1. an application choice network interface that is used to make the equipment with a plurality of network interfaces is to send the method for data, and this method is by providing interface to realize between the network layer of described application and protocol stack, and the described interface that provides is used for:
Provide information to described application about network interface validity;
By the described network interface of described application choice;
Selected network interface is committed to described network layer as parameter.
2. according to the process of claim 1 wherein that the interface between described application and the described network layer is the Java interface.
3. produce the object that comprises about the information of agreement and network interface according to the process of claim 1 wherein by described application, be used for selected network interface is committed to described network layer as parameter.
4. provide by the internal data newspaper according to the information that the process of claim 1 wherein about network interface validity.
5. provide from described network layer information inquiring by application layer according to the information that the process of claim 1 wherein about network interface validity.
6. according to the method for claim 1, also be included in the step of calling additional application on the rank of network layer.
7. an application choice network interface that is used to make the equipment with a plurality of network interfaces comprises being used for by the device of interface is provided that to send the equipment of data the described interface that provides is used between the network layer of described application and protocol stack:
Provide information to described application about network interface validity;
By the described network interface of described application choice;
Selected network interface is committed to described network layer as parameter.
8. according to the equipment of claim 7, the interface between wherein said application and the described network layer is the Java interface.
9. according to the equipment of claim 7, wherein produce the object that comprises about the information of agreement and network interface, be used for selected network interface is committed to described network layer as parameter by described application.
10. according to the equipment of claim 7, wherein the information about network interface validity is provided by the internal data newspaper.
11. according to the equipment of claim 7, wherein the information about network interface validity is provided from described network layer information inquiring by application layer.
12., also comprise the device that is used on the rank of network layer, calling additional application according to the equipment of claim 7.
13., it is characterized in that described equipment is movably according to the equipment of claim 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04291679A EP1612996B1 (en) | 2004-07-01 | 2004-07-01 | Method for selecting among network interfaces, device with multiple network interfaces and application |
| EP04291679.1 | 2004-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716963A CN1716963A (en) | 2006-01-04 |
| CN1716963B true CN1716963B (en) | 2010-05-05 |
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Family Applications (1)
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| CN200510080749.2A Expired - Fee Related CN1716963B (en) | 2004-07-01 | 2005-06-30 | Method for selecting among network interfaces, device with multiple network interfaces |
Country Status (6)
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| US (1) | US20060015636A1 (en) |
| EP (1) | EP1612996B1 (en) |
| JP (1) | JP5113993B2 (en) |
| CN (1) | CN1716963B (en) |
| AT (1) | ATE427601T1 (en) |
| DE (1) | DE602004020329D1 (en) |
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2004
- 2004-07-01 EP EP04291679A patent/EP1612996B1/en not_active Expired - Lifetime
- 2004-07-01 DE DE602004020329T patent/DE602004020329D1/en not_active Expired - Lifetime
- 2004-07-01 AT AT04291679T patent/ATE427601T1/en not_active IP Right Cessation
-
2005
- 2005-06-15 US US11/152,244 patent/US20060015636A1/en not_active Abandoned
- 2005-06-24 JP JP2005184693A patent/JP5113993B2/en not_active Expired - Fee Related
- 2005-06-30 CN CN200510080749.2A patent/CN1716963B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6236365B1 (en) * | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
| CN1438791A (en) * | 2002-02-15 | 2003-08-27 | 株式会社日立制作所 | Network device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1716963A (en) | 2006-01-04 |
| EP1612996B1 (en) | 2009-04-01 |
| JP5113993B2 (en) | 2013-01-09 |
| ATE427601T1 (en) | 2009-04-15 |
| US20060015636A1 (en) | 2006-01-19 |
| EP1612996A1 (en) | 2006-01-04 |
| DE602004020329D1 (en) | 2009-05-14 |
| JP2006072969A (en) | 2006-03-16 |
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